Question about 2004 Buick LeSabre

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Sometimes the blower will turn on and sometimes it won't.

The blower motor will turn on and somtimes it won't on a 97 lesabre. When it does run, it will start out fine and then fade out and stop.

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The windings inside your blower motor itself are most likly bad it appears you need a new motor.

Posted on Oct 03, 2009

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Will bad blower resistor cause blower to stop working at all?


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REMOVE HEATER BLOWER MOTOR HOT WIRE BLOWER MOTOR IT.IF IT WORKS.YOUR AC AND HEATER CONTROL SWITCH IS FAULTY.CHECK HVAC FUSES AND CHECK BLOWER MOTOR RELAY.IF BLOWER MOTOR DONT WORK WHEN HOT WIRE REPLACE IT.IF ALL CHECK OUT GOOD.HAVE DEALERSHIP DO A DIAGNOSTIC TEST ON YOUR CLIMATE CONTROL SYSTEM.

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My heater blower comes on a long while after I turn in on. Sometimes it doesn't come on and sometimes it does. Everything else works well except for this The blower works great too when it runs.


could be the blower motor itself. if you are handy with a voltmeter, you can check to see if the blower motor is getting power while the switch is on. if it gets power and doesn't run, there's your problem. sometimes electric motors have a tendency when they are failing to come and go, working fine once they get going. its the getting it started from a stop that can be the problem.

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Why would a blower work sometimes and sometimes it won't on a 97 lesabre? When it does work, it will start on high and then fade out until it stops. How hard is a diy fix?


If you have a Volt Meter you can check the voltage to the fan motor. If the motor voltage drops you may have a bad fan switch, if your voltage stay's steady you have a bad fan motor. If you do not have a Volt Meter, when the motor starts to slow down tap on the motor with a small hammer lightly. If the motor speed picks up you have a bad motor.

Oct 03, 2009 | 1997 Buick LeSabre

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